tim/prune/undo/UndoLoadAudios.java

   1 package tim.prune.undo;\r
   2 \r
   3 import tim.prune.I18nManager;\r
   4 import tim.prune.data.TrackInfo;\r
   5 \r
   6 /**\r
   7  * Operation to undo a load audios operation\r
   8  */\r
   9 public class UndoLoadAudios implements UndoOperation\r
  10 {\r
  11         /** Number of audio clips added */\r
  12         private int _numAudios = -1;\r
  13 \r
  14 \r
  15         /**\r
  16          * Constructor\r
  17          * @param inNumAudios number of audios loaded\r
  18          */\r
  19         public UndoLoadAudios(int inNumAudios)\r
  20         {\r
  21                 _numAudios = inNumAudios;\r
  22         }\r
  23 \r
  24 \r
  25         /**\r
  26          * @return description of operation including number of audios loaded\r
  27          */\r
  28         public String getDescription()\r
  29         {\r
  30                 String desc = I18nManager.getText("undo.loadaudios");\r
  31                 if (_numAudios > 0)\r
  32                         desc = desc + " (" + _numAudios + ")";\r
  33                 return desc;\r
  34         }\r
  35 \r
  36 \r
  37         /**\r
  38          * Perform the undo operation on the given Track\r
  39          * @param inTrackInfo TrackInfo object on which to perform the operation\r
  40          */\r
  41         public void performUndo(TrackInfo inTrackInfo) throws UndoException\r
  42         {\r
  43                 // crop audio list to previous size\r
  44                 int cropIndex = inTrackInfo.getAudioList().getNumAudios() - _numAudios;\r
  45                 inTrackInfo.getAudioList().cropTo(cropIndex);\r
  46                 // clear selection\r
  47                 inTrackInfo.getSelection().clearAll();\r
  48         }\r
  49 }\r